Petunia plant named ‘Duegpbu’

ABSTRACT

A new and distinct cultivar of  Petunia  plant named ‘Duegpbu’, characterized by its compact, semi-upright to trailing and mounding plant habit; freely branching habit; early and freely flowering habit; large dark violet-colored flowers; and good garden performance.

Botanical designation: Petunia×hybrida.

Cultivar denomination: ‘DUEGPBU’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Petunia plant, botanically known as Petunia×hybrida and hereinafter referred to by the name ‘Duegpbu’.

The new Petunia plant is a product of a planned breeding program conducted by the Inventor in Rheinberg, Germany. The objective of the breeding program is to create new semi-upright to trailing Petunia plants with numerous unique and attractive flowers.

The new Petunia plant originated from a cross-pollination made by the Inventor in July, 2008 in Rheinberg, Germany of a proprietary selection of Petunia×hybrida identified as code number T05-4946-15, not patented, as the female, or seed, parent with a proprietary selection of Petunia×hybrida identified as code number T07-0520-5, not patented, as the male, or pollen, parent. The new Petunia plant was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross-pollination in a controlled greenhouse environment in Rheinberg, Germany in May, 2010.

Asexual reproduction of the new Petunia plant by terminal cuttings in a controlled greenhouse environment in Rheinberg, Germany since June, 2010 has shown that the unique features of this new Petunia plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Petunia have not been observed under all possible environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Duegpbu’. These characteristics in combination distinguish ‘Duegpbu’ as a new and distinct Petunia plant:

-   -   1. Compact, semi-upright to trailing and mounding plant habit.     -   2. Freely branching habit.     -   3. Early and freely flowering habit.     -   4. Large dark violet-colored flowers.     -   5. Good garden performance.

Plants of the new Petunia can be compared to plants of the female parent selection. Plants of the new Petunia differ primarily from plants of the female parent selection in the following characteristics:

-   -   1. Plants of the new Petunia are not as compact as plants of the         female parent selection.     -   2. Plants of the new Petunia and the female parent selection         differ in flower color as plants of the female parent selection         have purple-colored flowers.

Plants of the new Petunia can be compared to plants of the male parent selection. Plants of the new Petunia differ primarily from plants of the male parent selection in growth habit as plants of the new Petunia are not as vigorous as plants of the male parent selection.

Plants of the new Petunia can be compared to plants of the Petunia×hybrida ‘Duesurimbu’, disclosed in U.S. Plant Pat. No. 19,219. In side-by-side comparisons conducted in Rheinberg, Germany, plants of the new Petunia differed primarily from plants of ‘Duesurimbu’ in the following characteristics:

-   -   1. Plants of the new Petunia had smaller leaves than plants of         ‘Duesurimbu’.     -   2. Plants of the new Petunia had larger flowers than plants of         ‘Duesurimbu’.     -   3. Plants of the new Petunia and ‘Duesurimbu’ differed slightly         in flower color.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearance of the new Petunia plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Petunia plant.

The photograph comprises a close-up view of a typical flowering plant of ‘Duegpbu’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations, measurements and values describe plants grown in 12-cm containers during the summer in a glass-covered greenhouse in Rheinberg, Germany and under cultural practices typical of commercial potted Petunia production. During the production of the plants, day and night temperatures averaged 18° C. and light levels averaged 4,500 lux. Plants were pinched one time three weeks after planting and were 16 weeks old when the photograph and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Petunia×hybrida ‘Duegpbu’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of             Petunia×hybrida identified as code number T05-4946-15, not             patented.         -   Male, or pollen, parent.—Proprietary selection of             Petunia×hybrida identified as code number T07-0520-5, not             patented. -   Propagation:     -   -   Type.—By terminal cuttings.         -   Time to initiate roots, summer.—About five days at             temperatures of about 20° C.         -   Time to initiate roots, winter.—About seven days at             temperatures of about 20° C.         -   Time to produce a rooted young plant, summer.—About three             weeks at temperatures of about 20° C.         -   Time to produce a rooted young plant, winter.—About four             weeks at temperatures of about 20° C.         -   Root description.—Fine, fibrous; white in color.         -   Rooting habit.—Freely branching; dense. -   Plant description:     -   -   Plant and growth habit.—Compact, semi-upright to trailing             and mounding plant habit; freely branching habit with about             eight to ten lateral branches developing after pinching;             moderately vigorous growth habit.         -   Plant height.—About 12 cm.         -   Plant diameter.—About 35 cm. -   Lateral branch description:     -   -   Length.—About 16 cm.         -   Diameter.—About 4 mm.         -   Internode length.—About 3 cm.         -   Strength.—Moderately strong.         -   Aspect.—Initially upright to outwardly spreading.         -   Texture.—Pubescent.         -   Color.—Close to 144A to 144B. -   Foliage description:     -   -   Arrangement.—Before flowering begins, leaves are alternate,             simple; after flowering begins, leaves are opposite, simple.         -   Length.—About 4.8 cm.         -   Width.—About 3.1 cm.         -   Shape.—Spatulate.         -   Apex.—Obtuse.         -   Base.—Attenuate.         -   Margin.—Entire.         -   Texture, upper and lower surfaces.—Pubescent; leathery.         -   Venation pattern.—Pinnate; arcuate.         -   Color.—Developing and fully expanded leaves, upper surface:             Close to 137B to 137C; venation, close to 145A. Developing             and fully expanded leaves, lower surface: Close to 137C;             venation, close to 144B.         -   Petioles.—Length: About 6.6 mm. Diameter: About 3.4 mm.             Texture, upper and lower surfaces: Pubescent. Color, upper             surface: Close to 137B to 137C. Color, lower surface: Close             to 137C. -   Flower description:     -   -   Flower arrangement and habit.—Single salverform flowers             arising from leaf axils; freely flowering habit with usually             about 25 to 30 open flowers and flower buds per plant;             flowers face mostly upright to outwardly.         -   Fragrance.—None detected.         -   Natural flowering season.—Plants flower continuously during             the spring and summer in Germany; early flowering habit,             plants typically beginning flowering about nine weeks after             planting.         -   Flower longevity.—Individual flowers last about five to             seven days on the plant; flowers persistent.         -   Flower diameter.—About 6.5 cm.         -   Flower length (height).—About 3.2 cm.         -   Flower throat diameter.—About 1 cm.         -   Flower tube length.—About 2.7 cm.         -   Flower tube diameter.—About 2.8 mm.         -   Flower bud.—Length: About 4.3 cm. Diameter: About 6.8 mm.             Shape: Ovoid. Color: Close to 145C and 79A.         -   Corolla.—Arrangement: Five petals fused at the base and             opening into a flared trumpet. Petal lobe length (from             throat): About 3.3 cm. Petal lobe width: About 3.1 cm. Petal             shape: Roughly spatulate. Petal apex: Rounded. Petal margin:             Entire. Petal texture, upper and lower surfaces: Rippled,             glabrous. Throat texture: Rippled, glabrous. Tube texture:             Rippled, pubescent. Color: Petal lobe, when opening, upper             surface: Close to 79A. Petal lobe, when opening, lower             surface: Close to 83B. Petal lobe, fully opened, upper             surface: Close to 83A to 83B; venation, close to 83A; color             becoming closer to 82D with development. Petal lobe, fully             opened, lower surface: Close to 82B to 82C; venation, close             to 83A and 145A. Flower throat: Close to 80A; venation,             close to 83A. Flower tube: Close to 80B to 80C; venation,             close to 83A.         -   Calyx.—Arrangement: Five sepals fused at the base forming a             star-shaped calyx. Sepal length: About 2.3 cm. Sepal width:             About 4.2 mm. Sepal shape: Oblong. Sepal apex: Rounded.             Sepal margin: Entire. Sepal texture, upper and lower             surfaces: Smooth. Color, immature and mature, upper surface:             Close to 146A. Color, immature and mature, lower surface:             Close to 146B.         -   Peduncles.—Length: About 2.6 cm. Diameter: About 3.4 mm.             Strength: Moderately strong. Texture: Smooth. Color: Close             to 146B.         -   Reproductive organs.—Stamens: Quantity: Five per flower.             Filament length: About 1 cm. Filament color: Close to 155A.             Anther shape: Ovate. Anther length: About 1 mm. Anther             color: Close to 115A. Pollen amount: Abundant. Pollen color:             Close to 115A. Pistils: Quantity: One per flower. Pistil             length: About 2.1 cm. Style length: About 1.75 cm. Style             color: Close to 144D. Stigma shape: Rounded. Stigma color:             Close to 144A. Ovary color: Close to 144A and 14A. Seeds and             fruits: Seed and fruit development have not been observed on             plants of the new Petunia. -   Garden performance: Plants of the new Petunia have been observed to     have good garden performance and tolerate wind, rain and     temperatures ranging from about 5° C. to about 40° C. -   Pathogen & pest resistance: Plants of the new Petunia have not been     observed to be resistant to pathogens and pests common to Petunia     plants. 

It is claimed:
 1. A new and distinct Petunia plant named ‘Duegpbu’ as illustrated and described. 